---
type: guide
title: "NCR Paper, How Carbonless Sets Copy and What Ruins Them"
description: "NCR paper copies by bursting dye capsules under pen pressure. How the CB, CFB and CF sheets stack, what each part color means, and what ruins a set."
resource: https://www.4over4.com/guide/ncr-paper-carbonless-forms-explained
tags: ["guide"]
generated:
  by: "process:4over4-mapp-build"
  at: 2026-09-16T23:13:27.757Z
timestamp: 2026-09-16T23:13:27.757Z
sources:
  - resource: https://www.4over4.com/guide/ncr-paper-carbonless-forms-explained
    title: "NCR Paper, How Carbonless Sets Copy and What Ruins Them"
status: stable
---

# NCR Paper, How Carbonless Sets Copy and What Ruins Them

NCR paper copies by bursting dye capsules under pen pressure. How the CB, CFB and CF sheets stack, what each part color means, and what ruins a set.

See [all guide concepts](index.md).

- Page type: guide
- URL: https://www.4over4.com/guide/ncr-paper-carbonless-forms-explained